All-Day Activity

A sidekick that’s ready for all-day action.

Fitbit One® monitors every move of your fitness journey, so you can dive deeper into the stats you earn along the way.

Fitbit One® monitors every move of your fitness journey, so you can dive deeper into the data you create with each step you take, floor you climb and calorie you burn.

Clock + Display

See every move on display.

The user-friendly display makes it easy to quickly check your stats and the time in stride.

Fitbit One’s user-friendly display makes it easy to quickly check your stats in stride and stay moving throughout the rest of the day.

Sleep + Alarms

It gets to work while you get some sleep.

Put your tracker inside the sleep wristband that’s included with Fitbit One to track your sleep quality at night, then set a silent alarm to wake more peacefully.

Use the sleep wristband that’s included with your tracker to track your sleep quality on a nightly basis. You can also set a silent alarm that gently vibrates, waking you up without disturbing your partner.

Long battery life + wireless syncing

Battery life that keeps up with you.

Fitbit One has a 14-day* battery life and automatically syncs to your computer and 200+ leading devices so you never miss a stat.

Fitbit One has a 14-day* battery life and automatically syncs to your computer and 200+ leading devices so you never miss a stat.

Sensors and Components

Display

Battery and Power

We recommend charging your One weekly to ensure you are always tracking.

Battery life: 10-14 days

Battery type: Lithium-polymer

Charge time: One to two hours

Radio transceiver: Bluetooth 4.0

Memory

Tracks 7 days of detailed motion data – minute by minute.

Tracks daily totals for past 23 days

Water Resistance

One is sweat, rain and splash proof. However, the device is not swim proof. With any clip-based wearable device, it’s best for your skin if the clip stays dry and clean.

Care

You can clip One to a belt, pocket or bra. Always use the silicone holder when clipping it to a bra or waistband as the plastic One tracker is not meant to be worn in direct contact with the skin. Make sure the One display faces outward when clipped to your bra. Learn more

Materials

The One tracker is made of thermoplastic. The clip is made of silicone and metal.

Sensors and Components

Display

Battery and Power

We recommend charging your One weekly to ensure you are always tracking.

Battery life: 10-14 days

Battery type: Lithium-polymer

Charge time: One to two hours

Radio transceiver: Bluetooth 4.0

Memory

Tracks 7 days of detailed motion data – minute by minute.

Tracks daily totals for past 23 days

What’s Included

Fitbit One™ trackerCharging cableWireless sync dongle

Silicon clipSleep wristband

Water Resistance

One is sweat, rain and splash proof. However, the device is not swim proof. With any clip-based wearable device, it’s best for your skin if the clip stays dry and clean.

Care

You can clip One to a belt, pocket or bra. Always use the silicone holder when clipping it to a bra or waistband as the plastic One tracker is not meant to be worn in direct contact with the skin. Make sure the One display faces outward when clipped to your bra. Learn more

Materials

The One tracker is made of thermoplastic. The clip is made of silicone and metal.